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Tips for conversion Qualitative Schemes do poorly Inevitable light-to-dark ordering suggests a hierarchy Unrelated classes end up with similar grays

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Tips for conversion Design for medium: will your map be printed/reproduced? Lightness variation is the key to a good grayscale color scheme Limit the number of classes for copiers (4 or 5 at most Ideally, your colors will perform in both color and gray

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The end of color 1.Describe the hue, lightness, and saturation of colors 2.Plan and produce a color scheme with hue, lightness, and saturation suited to mapped data characteristics 3.Categorize color schemes as sequential, diverging, or qualitative 4.Adjust map colors for colorblind readers

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General-reference maps usually represent things we can see and touch Gen-ref maps are offer congruent representations of geographic space

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The thematic map Also called the “statistical map,” “single- topic map,” or the “special-purpose” map Less literal than a general-reference map Two groups of thematic maps: qualitative and quantitative

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The 2 kinds of thematic maps Quantitative thematic maps –Spatial aspects of numerical data Corn yield Per Capita Income Number of Tornadoes Population Density –These maps are concerned with amounts, or quantities –Can you tell the difference? –Is the attribute a quantity or a quality?

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This here is a Thematic map: Lung cancer in white males, by Brewer Qualitative or Quantitative?

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What’s the point of Map Design? The point of map design is to facilitate the communication of geographic information Good map design is like good writing –Eloquent –Efficient –Informative –Pleasing –Well-structured

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Brewer’s 5 Questions 1.What information is being mapped? 2.Who will be reading the map? 3.Is the map content coordinated with written content or other graphics? 4.What size and medium will be used to display the map? 5.What are the time & budget and constraints on map production?

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Who will be reading the map? AUDIENCE!! –If you were to write a book how would audience influence your writing? –Know your audience Are they novices? Are they experts? Maps to see (simpler) Maps to read (complex)

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What size and medium will be used to display the map? How will you present your map? Some examples of map media: Computer screen, projected display for hundreds of viewers, color laser prints for a small group, b&w print for a town meeting, large plot for a wall, glossy magazine, backdrop for a tradeshow, television news map, 2-inch PDA screen, etc.

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Resolution defined Resolution measures the smallest marks we are able to create within a display. It varies significantly across media Commonly expressed as dpi (dots per inch)